免责声明
Littelfuse产品并非为以下用途而设计，也不应被用于这些用途：包括但不限于汽车、航空航天、医疗、救生、维生、核设施、高可靠性应用、用于手术植入体内的装置，或者在产品故障或运行无法达到理想状态的情况下会造成人身伤害、死亡或财产损失的任何其他应用。除非在适用的Littelfuse产品文档中已有明确说明。 如果将产品用于相关Littelfuse文件中未明确说明的任何其他用途，则产品不享受Littelfuse质保。 如果将产品用于相关Littelfuse文件中未明确说明的其他用途，则Littelfuse不会为因此造成的任何索赔或损失承担责任。 除非经Littelfuse另行许可，否则Littelfuse产品的销售和使用应遵守Littelfuse销售条款与条件。 "Littelfuse"包括Littelfuse, Inc.及其所有附属实体。
The ALT Pump Controls series is used to alternate between two loads and is commonly used in duplex pump-up and pump-down applications to balance the run-time of both pumps. The ALT relays have a built-in debounce time delay that prevents the relay from changing state if the float momentarily bounces, and they have a built-in switch to manually force a specific load (pump) to operate each time the input float closes. This is helpful when performing periodic maintenance or pump repair. Note the following:
The ALT-xxx-1-SW alternating relays are 11-pin octal base plug-ins available in two different single-phase voltage ranges.
- The ALT-100-1-SW is used for 95–120 V ac applications, and the ALT-200-1-SW is used for 190–240 V ac applications
- Both models are designed for a single float input and feature two isolated Form C relay (DPDT) outputs with two LEDs to indicate the energized loads
The ALT-xxx-3-SW alternating relays are 8-pin octal base plug-ins available in two different single-phase voltage ranges.
- The ALT-100-3-SW is used for 95–120 V ac applications, and the ALT-200-3-SW is used for 190–240 V ac applications
- Both models are designed for three float inputs (lead, lag, and stop floats). The lead and lag floats actuate latching relays that release when the stop float actuates. The units feature two LEDs to indicate the energized load(s).
Must use the OT08PC socket for the 8-pin models and the OT11PC socket for the 11-pin models, for UL Rating*.
*注: manufacturer’s recommended screw terminal torque for the OT Series Octal Sockets is 12 in–lbs.
功能与特色
- Debounce time delay
- LED status indicators
- Invertible relay logic
- Built-in manual switch to force load operation
- ALT-xxx-3-SW offers duplexing